/Engine/Source/Runtime/Engine/Classes/Engine/World.h
Delegate for generating world asset registry tags so project/game scope can add additional tags for filtering levels in their UI, etc
typedef TMulticastDelegate_TwoParams< void, const [UWorld](API\Runtime\Engine\Engine\UWorld) *, [TArray](API\Runtime\Core\Containers\TArray)< [UObject::FAssetRegistryTag](API\Runtime\CoreUObject\UObject\UObject\FAssetRegistryTag) > & > FWorldGetAssetTags